multicast recursive-lookup local-mt enable

Function

The multicast recursive-lookup local-mt enable command enables a device to recurse original next hops of multicast routes to MIGP shortcuts.

The undo multicast recursive-lookup local-mt enable command disables a device from recursing original next hops of multicast routes to MIGP shortcuts.

By default, a device is disabled from recursing original next hops of multicast routes to MIGP shortcuts.

Format

multicast recursive-lookup local-mt enable

undo multicast recursive-lookup local-mt enable

Parameters

None

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mcast-base	write

Usage Guidelines

Usage Scenario

In the advertisement of multicast routes through BGP, if the original next-hop outbound interface of a route to a multicast source is a TE tunnel's outbound interface on which IGP shortcuts are enabled, multicast traffic fails to be forwarded if the next-hop interface directly recurse to the unicast IGP TE tunnel's outbound interface. To resolve this issue, run the multicast recursive-lookup local-mt enable command to enable the device to recurse original next hops of multicast routes to MIGP shortcuts. Physical interfaces are then used as the next-hop outbound interfaces of multicast routes, and multicast traffic can be forwarded normally.

Prerequisites

Multicast routing has been enabled using the multicast routing-enable command.

Precautions

The multicast recursive-lookup local-mt enable command applies only to public network devices.

Example

# Enable a device to recurse original next hops of multicast routes to MIGP shortcuts.

<HUAWEI> system-view
[*HUAWEI] multicast routing-enable
[*HUAWEI] multicast recursive-lookup local-mt enable